NT3H2111 Datasheet, PDF (26/77 Pages) NXP Semiconductors – Designed to be the perfect enabler for NFC in home-automation

NXP Semiconductors
NT3H2111/NT3H2211
NFC Forum Type 2 Tag compliant IC with I²C interface
Table 12. Session registers NTAG I²C plus
NFC
address
(Sector 0)
I²C Address
Dec Hex Dec Hex
0
236 ECh 254 FEh
NC_REG
237 EDh
WDT_MS
Byte number
1
2
LAST_NDEF_BLOCK SRAM_MIRROR _BLOCK
I2C_CLOCK_STR
NS_REG
3
WDT_LS
RFU
Both, the session and the configuration registers have the same configuration options and
parameters except the REG_LOCK bits, which are only available in the configuration
register and the NS_REG bits which are only available in the session register. After POR,
the content of the configuration register is loaded into the session register.
The values of both registers can be changed during a communication session. If the
desired effect should be visible immediately, but only for the current communication
session, the session registers must be used. After POR, the session registers values will
again contain the configuration register values as before.
To change the default behavior, changes to the configuration register are needed, but the
related effect will only be visible after the next POR.
To make the effect immediately and after next POR visible, changes to configuration and
session registers are needed.
All registers and configuration default values, access conditions and descriptions are
defined in Table 13 and Table 14.
Reading and writing the session registers via I²C can only be done via the READ and
WRITE registers operation - see Section 9.8.
NT3H2111/NT3H2211
Product data sheet
COMPANY PUBLIC
All information provided in this document is subject to legal disclaimers.
Rev. 3.0 — 3 February 2016
359930
© NXP Semiconductors N.V. 2016. All rights reserved.
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